package demo3;


public interface ITest {

    /*final public static int a = 10;
    final public static int b = 10;
    static final public int c = 10;
    static public final int d = 10;*/


    /*{}
    static {}
    public ITest() {

    }*/


    //必须被重写
    void testA();

    //一定不能重写
    public static void staticMethod () {
        System.out.println("这是staticMathe()");
    }

    //可重写可不重写
    default public void defaultMethod() {
        System.out.println("这是defaultMethod()");
    }
}
